Received: by 2002:ac0:a5a6:0:0:0:0:0 with SMTP id m35-v6csp4141836imm; Tue, 11 Sep 2018 07:35:03 -0700 (PDT) X-Google-Smtp-Source: ANB0Vdb+Jkn2HlMpv+jSuCq5A9tB5ASrQVMPNO6dVfYYeolqLQuaV0PU6o5l5fmm6NHTLcniUvwJ X-Received: by 2002:a63:9dcd:: with SMTP id i196-v6mr29044901pgd.238.1536676503312; Tue, 11 Sep 2018 07:35:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1536676503; cv=none; d=google.com; s=arc-20160816; b=SbBDEISSIeTINzQqI9LXTW7VTqimL9paOfLwUlEmVgWtuX66zL3IKEuGQZ0ak3B3A1 xYetQqZB14NywsRDy0RaElpNngmf6VpJO1QQrhBB34jYlJM/Vhqw5A4dLK38LFRyCNno ztAHxT3RaceKZqaz5dCeHRHdrOA8Dvio3mb+ColewgcLIjYVg0avUi3m/A1sQW1mN+/o 55ss/pjkwy8+wQ3/XbyJcQFHZHqEcpWv/QJUMe5aORyD8FcOh71iLUlel1Hq5oALjC8v Oa4puTjAxghDqSBoZ6VxJI4BoBzOVyk9cgfrBp7c8Mc+XUVrle3al74ueqPyudOWDqTx 5Ngw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:autocrypt:openpgp:from:references:cc:to:subject; bh=N2MWKbfQBrQig7FJSIWKJ6nMWc49mPXYe4W3jbZP6jc=; b=mHDkqlzezAjQwviA4/bfWrSF4/ZPGsUFGVa0SI+O8/vTeRDXJl5Z5gvvHKjhAygMEx gqWmPr1RKU0OH0tzJ9oRfunNgt2SJmu3lVunrXHxWT/28aBVqjr0rx96gqb+SJU2DLqC I49ZYfZxpqc66qx/pIzsb3yUd0F7unJwGsChEAbTwS/9dW3d/ZnExZh/1ji90OxEpHdj rzDsRlW+LCZJeXkaYN9iwSEIsJMKmokFrR0IXCvRKLfB/V8ckECY4xYoCcYtYHIJ/fNt AyoP4Qaa9r0JYN9bnS9V/JJcCZ8cRp9wOPN7rigDFKj/ZOfccEf2ZlXBYLJYtYCqAHtQ H5lw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id d20-v6si21584796pgj.535.2018.09.11.07.34.17; Tue, 11 Sep 2018 07:35:03 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727658AbeIKT33 (ORCPT + 99 others); Tue, 11 Sep 2018 15:29:29 -0400 Received: from mx2.suse.de ([195.135.220.15]:55898 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726670AbeIKT32 (ORCPT ); Tue, 11 Sep 2018 15:29:28 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id B3361AE8C; Tue, 11 Sep 2018 14:29:53 +0000 (UTC) Subject: Re: [PATCH v3] xen: avoid crash in disable_hotplug_cpu To: Boris Ostrovsky , Olaf Hering , xen-devel@lists.xenproject.org Cc: open list References: <20180907063023.16913-1-olaf@aepfle.de> <92d29676-bba7-d3df-442a-5058141922c9@suse.com> <8ea67ca3-19e4-21cb-28e8-fee796ac6ab1@oracle.com> From: Juergen Gross Openpgp: preference=signencrypt Autocrypt: addr=jgross@suse.com; prefer-encrypt=mutual; keydata= xsBNBFOMcBYBCACgGjqjoGvbEouQZw/ToiBg9W98AlM2QHV+iNHsEs7kxWhKMjrioyspZKOB ycWxw3ie3j9uvg9EOB3aN4xiTv4qbnGiTr3oJhkB1gsb6ToJQZ8uxGq2kaV2KL9650I1SJve dYm8Of8Zd621lSmoKOwlNClALZNew72NjJLEzTalU1OdT7/i1TXkH09XSSI8mEQ/ouNcMvIJ NwQpd369y9bfIhWUiVXEK7MlRgUG6MvIj6Y3Am/BBLUVbDa4+gmzDC9ezlZkTZG2t14zWPvx XP3FAp2pkW0xqG7/377qptDmrk42GlSKN4z76ELnLxussxc7I2hx18NUcbP8+uty4bMxABEB AAHNHkp1ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmRlPsLAeQQTAQIAIwUCU4xw6wIbAwcL CQgHAwIBBhUIAgkKCwQWAgMBAh4BAheAAAoJELDendYovxMvi4UH/Ri+OXlObzqMANruTd4N zmVBAZgx1VW6jLc8JZjQuJPSsd/a+bNr3BZeLV6lu4Pf1Yl2Log129EX1KWYiFFvPbIiq5M5 kOXTO8Eas4CaScCvAZ9jCMQCgK3pFqYgirwTgfwnPtxFxO/F3ZcS8jovza5khkSKL9JGq8Nk czDTruQ/oy0WUHdUr9uwEfiD9yPFOGqp4S6cISuzBMvaAiC5YGdUGXuPZKXLpnGSjkZswUzY d9BVSitRL5ldsQCg6GhDoEAeIhUC4SQnT9SOWkoDOSFRXZ+7+WIBGLiWMd+yKDdRG5RyP/8f 3tgGiB6cyuYfPDRGsELGjUaTUq3H2xZgIPfOwE0EU4xwFgEIAMsx+gDjgzAY4H1hPVXgoLK8 B93sTQFN9oC6tsb46VpxyLPfJ3T1A6Z6MVkLoCejKTJ3K9MUsBZhxIJ0hIyvzwI6aYJsnOew cCiCN7FeKJ/oA1RSUemPGUcIJwQuZlTOiY0OcQ5PFkV5YxMUX1F/aTYXROXgTmSaw0aC1Jpo w7Ss1mg4SIP/tR88/d1+HwkJDVW1RSxC1PWzGizwRv8eauImGdpNnseneO2BNWRXTJumAWDD pYxpGSsGHXuZXTPZqOOZpsHtInFyi5KRHSFyk2Xigzvh3b9WqhbgHHHE4PUVw0I5sIQt8hJq 5nH5dPqz4ITtCL9zjiJsExHuHKN3NZsAEQEAAcLAXwQYAQIACQUCU4xwFgIbDAAKCRCw3p3W KL8TL0P4B/9YWver5uD/y/m0KScK2f3Z3mXJhME23vGBbMNlfwbr+meDMrJZ950CuWWnQ+d+ Ahe0w1X7e3wuLVODzjcReQ/v7b4JD3wwHxe+88tgB9byc0NXzlPJWBaWV01yB2/uefVKryAf AHYEd0gCRhx7eESgNBe3+YqWAQawunMlycsqKa09dBDL1PFRosF708ic9346GLHRc6Vj5SRA UTHnQqLetIOXZm3a2eQ1gpQK9MmruO86Vo93p39bS1mqnLLspVrL4rhoyhsOyh0Hd28QCzpJ wKeHTd0MAWAirmewHXWPco8p1Wg+V+5xfZzuQY0f4tQxvOpXpt4gQ1817GQ5/Ed/wsDtBBgB CAAgFiEEhRJncuj2BJSl0Jf3sN6d1ii/Ey8FAlrd8NACGwIAgQkQsN6d1ii/Ey92IAQZFggA HRYhBFMtsHpB9jjzHji4HoBcYbtP2GO+BQJa3fDQAAoJEIBcYbtP2GO+TYsA/30H/0V6cr/W V+J/FCayg6uNtm3MJLo4rE+o4sdpjjsGAQCooqffpgA+luTT13YZNV62hAnCLKXH9n3+ZAgJ RtAyDWk1B/0SMDVs1wxufMkKC3Q/1D3BYIvBlrTVKdBYXPxngcRoqV2J77lscEvkLNUGsu/z W2pf7+P3mWWlrPMJdlbax00vevyBeqtqNKjHstHatgMZ2W0CFC4hJ3YEetuRBURYPiGzuJXU pAd7a7BdsqWC4o+GTm5tnGrCyD+4gfDSpkOT53S/GNO07YkPkm/8J4OBoFfgSaCnQ1izwgJQ jIpcG2fPCI2/hxf2oqXPYbKr1v4Z1wthmoyUgGN0LPTIm+B5vdY82wI5qe9uN6UOGyTH2B3p hRQUWqCwu2sqkI3LLbTdrnyDZaixT2T0f4tyF5Lfs+Ha8xVMhIyzNb1byDI5FKCb Message-ID: <1f93538a-8cd7-bf3f-1d49-a3e3db005be7@suse.com> Date: Tue, 11 Sep 2018 16:29:52 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <8ea67ca3-19e4-21cb-28e8-fee796ac6ab1@oracle.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/09/18 16:29, Boris Ostrovsky wrote: > On 9/11/18 7:25 AM, Juergen Gross wrote: >> >> Reviewed-by: Juergen Gross > > So is it v3 or v4, you gave R-b for both. (I slightly prefer v3, but > either is fine). V4 is better as it does the online test only after acquiring the hotplug lock. Juergen